428329313 has 2 divisors, whose sum is σ = 428329314. Its totient is φ = 428329312.

The previous prime is 428329309. The next prime is 428329351. The reversal of 428329313 is 313923824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 367987489 + 60341824 = 19183^2 + 7768^2 .

It is a cyclic number.

It is not a de Polignac number, because 428329313 - 2² = 428329309 is a prime.

It is not a weakly prime, because it can be changed into another prime (428329303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214164656 + 214164657.

It is an arithmetic number, because the mean of its divisors is an integer number (214164657).

Almost surely, 2^428329313 is an apocalyptic number.

It is an amenable number.

428329313 is a deficient number, since it is larger than the sum of its proper divisors (1).

428329313 is an equidigital number, since it uses as much as digits as its factorization.

428329313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The square root of 428329313 is about 20696.1183075474. The cubic root of 428329313 is about 753.8054369504.

The spelling of 428329313 in words is "four hundred twenty-eight million, three hundred twenty-nine thousand, three hundred thirteen".